Use the location where FileDescriptorWatcher is created to track the libevent handlers

ui/events/ozone/evdev/event_converter_evdev.cc

Index: ui/events/ozone/evdev/event_converter_evdev.cc
diff --git a/ui/events/ozone/evdev/event_converter_evdev.cc b/ui/events/ozone/evdev/event_converter_evdev.cc
index e9da81978f9dcc739ba29b7dbe00a64cc1b02d1a..9ce8d600cddfa73c9ab61bc08a1d74d5a3b9cf9f 100644
--- a/ui/events/ozone/evdev/event_converter_evdev.cc
+++ b/ui/events/ozone/evdev/event_converter_evdev.cc
@@ -28,8 +28,13 @@ EventConverterEvdev::EventConverterEvdev(int fd,
                                          uint16_t product_id)
     : fd_(fd),
       path_(path),
-      input_device_(id, type, name, GetInputPathInSys(path), vendor_id,
-                    product_id) {}
+      input_device_(id,
+                    type,
+                    name,
+                    GetInputPathInSys(path),
+                    vendor_id,
+                    product_id),
+      controller_(FROM_HERE) {}
 
 EventConverterEvdev::~EventConverterEvdev() {
   DCHECK(!enabled_);